fuel injection cfm vs. carb cfm
 

Is there some accurate way of determining the cfm flow of a fuel injection flow vs the carb flow? I was looking in a MM&FF magazine and they were rating some engines and they were using a carb on all these. Just kinda curious as to know how you could take a 700 cfm carb (for example) and put fuel injection on it that would rate as well as the carb.